[c-nsp] CWDM SFP+ on N7K

Josh Karki joshuskarki at gmail.com
Wed Jun 10 12:52:52 EDT 2015

I cannot see SFP type with sh inv on Cat6500 because the gbic is in the X2
converter, but yes, I can see it (SFP-10G-LR)  on Cat4500x, So in my
current setup, the CWDM sfp+ is working on Cat6500 and 4500x is because the
vendor has done some sort of coding on regular SFP+ LR and make it
compatible?.. humm.. that's interesting!

I will plan to take network downtime and see if that the same SFP works
either on M1 or F1 line card.

Thank  you!


On Wed, Jun 10, 2015 at 12:51 AM, Brian Turnbow <b.turnbow at twt.it> wrote:

> Hi,
> >
> > Hi,
> >
> > I'm curious if any of you have used 10G CWDM on Nexus 7k, M1 or F1 line
> > cards. Curious if any 3rd party CWDM SFP+ is supported with any of these
> > line cards on 7K.
> Never tried on a 7k but you should be ok, everything else I've tried works
> fine.
> Talk to your vendor, most will code the sfp+ to whatever you want to make
> it compatible, even suggesting what is best.
> i.e. the 7k thinks it's a SFP-10G-LR but in reality it's  cwdm. ( you can
> check what they show up as on the 6500 with sh inv)
> We use solid optics and have been happy with the product and support.
> As to if it's officially supported,  that is another can of worms.
> Brian
> >
> > We have metro CWDM ring and for some of the campuses we are currently
> > using 10G. One end of the site, the connection (1510nm) is terminated on
> > Cat6509, VS-720-10G-3C and the other end is on Cat4500X-16SFP+.
> >
> > The Cisco 10-G Ethernet trans modules compatibility Matrix, link below
> > clearly says that none of the hardware's above will do CWDM SFP+, but to
> be
> > honest, it's been working great on Cat6500 and 4500.
> >
> >
> > http://www.cisco.com/c/en/us/td/docs/interfaces_modules/transceiver_mo
> > dules/compatibility/matrix/10GE_Tx_Matrix.html
> >
> >
> > Thanks
> > Josh
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